Comfort Air Curtains

INVISIDOR CITY

The Invisidor CITY range of air curtains were developed to bring performance benefits and energy and cost savings at a lower installed cost than ever before, being ideally suited to high street stores and other small buildings. Biddle’s CITY incorporates improved structural design and enhanced aesthetic appeal without compromising its award-winning performance.

Fresh Thinking in Climate Separation
One of the main functions of an air curtain is to condition outdoor air as it enters the building. For this to be achieved, the airflow must cover the full width of the entrance, so that it cannot be bypassed by incoming air. However, ensuring the airflow reaches the floor level is more difficult, with turbulence at the air outlet being a critical factor.

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Features & benefits

Aesthetically designed unit
Comfort and energy savings
Low-cost installation
Simple control
Used by many high street stores
Incorporates patented Invisidor technology
Suitable for most high street applications

AIRFLOW TECHNOLOGY
Along with the TNO wind tunnel facility at Apeldoorn in the Netherlands, Biddle have successfully developed a patented rectifier, which minimises turbulence in the discharge airstream. With reduced turbulence, induction of the surrounding air is also reduced, which in turn, increases the jet throw by 30-40% of an equal volume/velocity unit. The pressure chamber behind the rectifier evenly distributes the air stream across the whole width of the unit. The result is a deeply penetrating, laminar airstream, reducing energy consumption whilst increasing comfort levels.

Biddle City-brochure

Biddle City- Manual

INVISIDOR CITY

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